Oil-burning purnace



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G. C. ADAMS.

OIL BURNING FURNACE.

FILED ocT. a. 1921.

Jan. 16, 1923..

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ented en li.J et .il

@BURG-2E C. ADAMS, UFE' SAN FRANClf-EC, CALIlOlELNA.

.application filed @ctober 8, 1921.

To ai?, `whom t may concern. l

Be it lo'ioivn that lf., Grenen C. Anatra, a citizen o't the United States, residing` at @an llfrainzisco/` in the county of Sian liraneisco and itate et California, have invented new and useiful `linprovenients; .in ilildiurning lcurnaces, of which the ilfollowing;a is a speci- ;liiation. Y

lhe present invention relates to improve- .inents in furnace construction ir oil biirning boiler furnaces et the type exemplified in n v ll. S. Letters Patent No. 1,382,4l02, issued June 2l, 192i.

fin object of' the present invention is to iniijn'ove the construction of an oil burning ti'irnace so as to provide tor better coinbustion and greater heat at a relatively low 'fuel consi'lniption; to provide a steady :darne `whether large or small; to eliminate sinolte and noise and to permit et an eilllective control oit the flame7 at all times.

Another object oli the invention is to provide novel means for introducing air as a supporter oi. combustion in such inanner that effective combustion taires place, there being provided beneath the floor ot the 'iurnace an air chamber togetherivith ineans for heating` the air Within said chamber and conducting the saine toA a specially constructed air intalre arrangement which latter is loeated beneath the burner and forwardly thereof.

fr further object is to provide improved li'irnace construction for furnaceel hinting,` a plurality ot independent oil burners, there leingi; special construction to separate the portionn et the turn ace required t'or the suc reesiinl oieratien et each burner so that when only one burner under operation the operation oil said lnirner will not he eilfeeted by the other constructions 'lor the burner or burners not in operation.

'llhe invention further consists ot a peculiar combination, aseoeia-tion and interrela tion of specially constiiucted parts or ele- Inents as will be hereinafter `niore inllj,T described.

rlhe invention nosseseee other advantages and features seine of which, with the tore going will be set torth at length in the tollowing description 'Where l shall outline in full that forni of the invention which lt have selected for illustration in the drawings aecoinpanying and forming' part ot the present specification. fln said drawings l have shown one torni ot the construction ot my Serial No. 506,50?.

invention, but it to be understood that il do not liinit myself to such forni since the invention aeeilfn'eseed in the claims may he enil'iodied in. a ifilurality ot :torina l Alieieri'ingr to the drawings: Figi'. l a ilraginentary longitudinal. seeH tional view shoWing` the furnace constructed inacwrdanr'e with the present invention.

Fig. 2 is a top plan 'View ot the furnace shown in litigi. l. l

liig. 8 is a sectional vieiv taken on line ot Fig. 2.

Fig. .4l is a fragmentary vertical sectional vieiv showingI the arrangement of the air conducting; pipes. at the intake ends thereof.

Fig-. 5 is a cross sectional view taken on line 5-5 Voi' Fig'. l. l

llllig. G is a similar cross sectional View taken on line G--G oil? l; Figi'. i" an enlarged tragrn'ientary vertical sectional.. View oi" a niodilied forni et furnace construction wherein the deflector wall or Inernber is located at the baclr ot the furnace, `which latter .is :tornied with an air intake opening'.

Fig. 8 is a 'fii'agmentarv vertical sectional *ieW taken on line 8 8 et Fig.

lllig. 9 is a perspective vieiv oi? the deFlector Wall..

Fig'. 10 is a fragmentary longitudinal sectional vieiv taken on line ith-i0 oi' Fig. 9.

ln carrying' out the preeent invention the 'ii/oor of the :Furnace is iiiielined slightly from a point beneath the burner, in ste pls or stages to a inediate portion ot the "floor and at certain points oi the lineliinal Hoor9 a. 'plurality olE upwardly iflivergingi. relativeljvv large air inlet openings are ilfornied. 'flhe burners project the thune over `the inclined steps oft the tloor .in a eubstantiallv horizontal direction and in such uiauner that the 'Haines paes over the air inlet openiiigeW .ea-id tianiee are spaced above the openings suiiiciently to perniit the air to readilyY expand and heat and to inizi with the fuel rases burning in the furnace. The spacing ol the tlaines prevents einotheringil oil? the openingsj 'permits oil a better con'ibustion with a resultant savingl in incl, and inaxiinuni heat production. lin the ordinary air burning i'urnaee for boilers, the :.flanie usually iliasses directly over sniall nai allel sided air intake openings oriued in a level furnace AHoor and this tends to smother the ports or openings so that an .insn'iieient quantity ol air is admitted and combustion is not properly Supported. Furnae is oif this type are di'll'icult to manege under a small flame and When overloaded make an objectionable noise. The above features are characteristic of my previous Patent No. 1,382,402. In the present invention l enhance the advantages exeinplitied in my prior patent by a special furnace construcvor conduits which extend ,long-itiulinally ol? the fur-nace and are open at both ends, said pipes serving,` the double function of supporting` the floor and conducting heated air from the space beneath the floor to a point Where it will readily pass upwardly thru the intake openings and inte the furnace. The pipes are arranged in such manner that they are readily heated and air thus passingl thru the 9i es will be more eiieetivel f and euielrl heated for this reason. rlhe invention contemplates other special construction, as to the furnace, which tends to provide an effective draft of air from the chamber beneath the floor so that when said air passes thru the several intake openings and 4around the Haines it is effectively heated and will. readily support combustion. In addition the p construction of the furnace of this invention is specially provided for increasing the elfieieney of multi-burner furnaces, the arrangement being such that when only one burner is operated, the flame from said burner will not be ill-affected by the air cur- Vfurnace having` front and rear end walls rentstalren in from the air -intalre openings for the burner or burners not in operation. Referring to the drawings, 1 designates DOLO@ and 3, and side walls 3', the front wall being provided with the usual opening; i havingdraft regulating doors 5. this particular type of furnace, l employ two burners (3 and 7, both of which project lnniaontally into the furnace, thru openingsI F at points above the openiiinjs el. The Hoor l of the furnace is formed of lire-brick and supportml above the ground or floor level, upon a plurality of closely associated but slightly spaced, longitudinal pipes 10, `which pipes extend for the length of the floor and are in turn supported on transverse supportingpipes 11. The floor is thus supported so to provide beneath the same, an air space or chamber A, extending from one end wall to the other. The floor is inclined from a point beneath the burner to a point intermediate of its ends, at which latter there are formed depressions or firepits v12, which produce a swirling' effect, with the result that the air is thoroughly mixed with the `fases and a thorough combustion follows. This also retards movement of the llame and intensities the heat throughout the furnace.

,legrinning` at pointsl beneath the burners, the floor iuclines iu the lirst stage or steps` 13, which steps 13 are supported by pipes llextendingtransversely in the furnace. rl"hese portions 13 are, for example, two feet wide and terminate forwardly, for example., a little over twelve inches in front of the burner. At points alonev the outer sides of the portions 1,3, and below the, inclined surfaces thereof there are pro 'ided air ports lf3 conn-nullic-.itinnr with the air chamber ln front of these. openings and on opposite lsides of the portions 111, are several lavers of lire brick lli, over which air passes from `said ports into the furnace and around the burner. (shi top of the portions lil ol' the floor, on each side of the burner` are ballle members 1T, diverged il'mavardlv. Air introduced thru the ports l5 will pass between these bailles and the burner und around the sides and in front of said batlles and when said ballles become heated, they will heat the air thus passing in close proximity thereto. By divergingv the bales, the. vl'uel eases will be prevented from being;` smothered by too great a rush of air from behind the burner whereby a small flame may be effectively fired and maintained, intense and steady. rlhe floor preferably has extra walls 1S and 19 extended on opposite sides of the main side walls of the liurnace interior-l)Y thereof, for a short distance and ay longitudinal partition wall 19 extends between the lloor and ground level so as to separate the chamber A. The walls 18 and 1) are to be formed of lire-brick and are arranged so that the spaces on the sides of the burners will he the saine whereby the control of the burners may be effected with ease and accin'm-y. TWhere a pluralit7 of burners areA used. in order to equally divide the space therelietween. l employ a vertical partition wall 20 which extends from the end wall il at :x point l' \r 'ardhY of the step lil, a distance beyond raid step lit, for exannrile. two Yl'eet in :olv-.nmI thereof. The height oll this ".vall is auch that it extends about one l'oot above (he burner so as to forni a. complete partition between the burners. A lower wall extension :2l evtends Ll'roin the forward end o." the wall lll to the far side of the lirepit l2 and serves lo prevent a draft of air or fuel frases vtroni one burner from erteringv the region around the other burner. These walls provide for :in effective control of the llames from (he burner and prevent currents or eddies aroin'ul the burners snc-h as would de llerlV the llames, i

The second step Q2 of the inclined floor be- `grins from a point preferably one-half inch below the lower end of the lirst step and consists of transverse rows of lire-brick` which provides :L plurality of transverse air lli intake openings The Sides oi? the liriche ot each roiv :ire beveled so ne eo provide npivexdly enlerging porte or openings bet'veen the rows. 'lhe brie te nre eniiported hv pipee l :ind are inclined downwardly end fororally lint et :i lees inelii'ietion then the :tiret etegre. The :door on oipoeite sides oit thie stugge is eloeecl end solidly ffn'nied esi in the ordirnirv furnace. loive oit lire-lerici; 25 ere pleeed on the eidee oit vlie stenen*` 2:7) end, ei:- tend :i @light (lister ne Jhoef-e the tope oilE tlie roive oit the ifiie-lirieli (if enel] oll 'which Staines; :tre ifornied eo no to e or nir i id ,itine the .intoe Vi.' the i il :nid ist "l Home, v t e lower ci, l

mii. i loi-nforil ed; i" he iiivipei' edge oil? elle ilirenite. ',lfliee 1, nd entirely aioroee the widli oilf tl itiinece und the remaining i ortion oit 7) l'roin one me other end ie eolidlj/J iorn'ied in the cnetoinery mennen.

ln order to prei' e for maximum int lc oli nir for Supporting; conihnStien., the Sides oit layers l@ o'i" the lire-brick, et their torwerd edges; on o pi'roeite sides of the stesse lll :ire elinzifitered, or hevellei'l ne et Sie ne o provide inclined poi-rennes or porte l( the door lliewiee entende ticinesi e ot the ete ,es l". cerise nir" to he dre elinetion to the vertical and around the tope of 'the nir int lie openings et the iorivzird ende oil the second etages. This provides l-or intelring of oir pointe on the eide oi the tlen'ie in glieli nienner tliet the stir ie ijierniitted to expend heneeth the ilemee and hee no tendency7 to torce or deflect the ilnmee u p We rd lv.

ln order to provide :for en etleetive ond even distribution of air drown in thru the openinge l et tl-ie tori ford ende oi' the ehemliere il, there :iie provided, heidi-i walls Z9 et the torwerd ende oit the enid cllffin'ihere. 'lf`lieee l rit-lille Welle aire f -ijniced about e ioet 'from the Yinne f sides of tl e opi-ming@ lend :ire e' l tij! wider then eid openinge, the opper ende ot Seid openinha4 heine; below the upper eidee oit smid openin '.lllie 'ifi-ont `te., 'es ot the welle are straight et et 130, for elioi'it heit the lieioht oit th i welle and otherwise nre provided with rearwardly inclined or diverginpf enrfeeee 3l.. vertical and reervverdly inclined enrteces eenee the stir d eivn in thi-n the openingge -l te he deieeted upwardly :ind laterally end reefivordlv es well, eo th et the eir :ie deflected evenly thruont the forward ende oi" thechernbere il :ind it; thus permitted to heet While piieeinggg npweirdly towards the intake openings in the second etage. rlhe bottle wells oleo prevent the dii'eet tloiv oit :tir to the i'eer ende oit the eli iinihere il lllrolfrnliluv the 'forward ende oi the piped liegt intake openings. ln order to prevent oil ond dirt iroin drool me' down into the pipes end to otherwise prot/eet seid pipes, e leven of tire-liricl, ee Shown et i, ie leid upon the i ,Y J2 4v., rif i no eetiir ende oi the pipes, ,l he ethei ends of the pipes terminating', ne shown in llheg. 41, :it :i point spaced from the Well 5l, :ire reetrietee', preferably liv en element Such ne zijn ie iron piece 334i, which partially covere Seid oni' lliie arrangement permite nir to pri-ee i'iplveidly into the pipes :it 'the re- .'Ltriifted ends tllereo'lf' und by lifivi the pipes; el' rhtly iniflinefl .eo that only,r tlV restricted ei'ide ere lewe-itliee the oirpoeite ende, more eiiective circ-ii i d :ition ol :tir thru sei pipes :is jpiovideifl for. A

ln operacion oit the furnace when the lmrnere ere ignited the Heines will he projected substantially horizontally over the in- @lined etegiee oil the floor oit the furnace, such that the nir to support combustion will be drown into the ini' rnoce thru the mein intake openings sind et the nir porte otherwise pro vided in the door. Air will enter the chainliers; i thru the openings e end when the lire-briclre olf the floor become heated they will heet the nir beneath the tloo end Within seid Chambers il. By having; the pipes inclined, nir will one@ thru into the eoid pipes et the lower ende thereof and seid pipes will he heated due 'to theiin proxiinitj/v to the 'Hooi'. ille nir thee pessimi; thru the pipes will he lee-ted before heini;` discharged heneeth the 1 ein oir intelie openings. llius an effective mientit'v oit heated oir will he distributed et n, point where it will he teken in thru the renin oir ii Lelie openinglje and :t thorough combustion will he provided for.

l Gln-iin:

l. lin oi burning; furnace includingo borner, :i loer lnwinf); e downwardly inclined fmtlnce below the burner in 'front oli the eme, :inotlier ein-'foce contiguone with tlie lfret ,finrtzni-e z 'od lmving), e pliiiolity et :iir intake openings therein, un nir chen bei' provided laenentl Seid iloor und :i plurality of pipee upon which Seid lloor ie mounted, which pipes; extend lei'igthwise of Seid chainlier find ere open. et both ende with certain ende diepoeed beneath Seid intake openings.

2, in eil burning 'furnace including e burner, e Vlloor having' e downwardly inclined f-:iirteee below the burner in trent of the eine, :mother enrtoce contiguous with the first motrice :rod having; e plurality of oir intnlfe openingge therein, en air chamber provided lieneeth said floor, and t plurality of pipes upon which Seid fioor is mounted, which pipee eil tend lengthwise of' seid Chenilei' end. ore oi `en it hotli ende with Certain il ends iliepof-swl lleneiitli .Unid intelie openings,

lili

Said pipes being inclined se as te cause air te eireulate 'from the lower to the upper end thereof.

An eil burning urneee including` a burner7 e lieor having' e downwardly inelined surface below the burner in front et ythe Seine, another surface contiguous with arranged te intercept nir entering the elnnnher thru Seid opening.

Ll. An eil burning; furnace ineludflntgr lurnnee wells. u i' liiizrlit v et burners extending thru certain el Said 'elle inte the furnace, :i Heer fer the furnace, menus fer supporting' reid Hoer above the betteln level ell the uriniee Se :is te provide an :tir ehuinher helew the floor, Suid Heer lnivin;r inclined snrfaces of Carrying' inclination :it peints udineent te` but belew und in .trent elf' Suid lnirner, seid leer having` :i plurulitv et nir intake openings ewtendinnr tlieretln'u :it ene et the inclined surfieeS tliereet` :i partition extendinglengthwise in Suid 'tui-nere :ind separating* the inn-ners und inclined nurture: and intel-te Openings a'irein one another.

GEORGE C. Allrllll. 

